AIDS Weekly Plus

 

2003

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December

AIDS Vaccine: Company launches primate studies in validation of viral immunotherapy platform
AIDSWEEKLY Plus; Monday, December 29, 2003
Staff Medical Writers
Lipid Sciences, Inc., (LIPD) announced that with the recent completion of successful studies in a mouse animal model, it has achieved an important development milestone.

HIV/AIDS: Liver transplantation feasible for HIV patients
AIDSWEEKLY Plus; Monday, December 29, 2003
Staff Medical Writers
In the HAART era, liver transplantation has become feasible for HIV patients.

Drug Development: Potent HIV "maturation inhibitor" developed
AIDSWEEKLY Plus; Monday, December 29, 2003
Staff Medical Writers
"New HIV therapies are urgently needed to address the growing problem of drug resistance," researchers in Maryland noted.

HIV/AIDS Therapy: Nevirapine use in antiretroviral regimens can lower cardiovascular toxicity
AIDSWEEKLY Plus; Monday, December 22, 2003
Staff Medical Writers
The inclusion of NVP in antiretroviral regimens can reduce the risk of cardiovascular disease.

HIV/AIDS Therapy: Generic HAART agents produced in India are safe and effective
AIDSWEEKLY Plus; Monday, December 22, 2003
Staff Medical Writers
Generics HAART agents produced in India are safe and effective.

Drug Development: Trifluoperazine may enhance T-cell recovery in HIV patients
AIDSWEEKLY Plus; Monday, December 22, 2003
Staff Medical Writers
A novel agent may enhance T-cell recovery in HIV patients.

AIDS Transmission: Villagers in northeastern China contracted AIDS by selling blood, group says
AIDSWEEKLY Plus; Monday, December 15, 2003
Staff Medical Writers
Dozens of villagers in northeastern China have contracted the AIDS virus by selling blood and at least 20 have died, a human rights organization says.

AIDS Epidemiology: U.N.: Global AIDS epidemic rampant
AIDSWEEKLY Plus; Monday, December 15, 2003
Staff Medical Writers
The HIV/AIDS epidemic continues its devastating march across the globe, with more deaths and infections this year than ever before, according to a U.N. report.

HIV/AIDS: Hemoglobin levels strongly predict HIV progression
AIDSWEEKLY Plus; Monday, December 15, 2003
Staff Medical Writers
"The prospective, multicenter cohort study EuroSIDA has previously reported on predictors and outcomes of anemia in patients infected with human immunodeficiency virus," scientistsin Denmark noted. "In a Cox proportional-hazards model with serial measures of CD4+ cell count, plasma viral load, and degrees of anemia fitted as time-dependent variables, the relative hazard of death increased markedly for patients with anemia versus no anemia."

AIDS Epidemiology: China's AIDS epidemic is reaching "frightening" levels, renowned expert says
AIDSWEEKLY Plus; Monday, December 8, 2003
Staff Medical Writers
The number of AIDS patients in China is reaching "frightening" levels, a renowned expert on the disease said, after Beijing said it would provide free treatment to thousands of sufferers in dire financial straits.

HIV/AIDS Therapy: Fluorescence-based assay aids screening of potential HIV RT RNase H inhibitors
AIDSWEEKLY Plus; Monday, December 8, 2003
Staff Medical Writers
A novel fluorescence-based assay may aid the search for agents that can suppress HIV RT ribonuclease H (RNase H) activity.

HIV/AIDS Therapy: AZT has cytotoxic effects on placenta in pregnant women
AIDSWEEKLY Plus; Monday, December 8, 2003
Staff Medical Writers
AZT treatment can have toxic effects on the placenta in pregnant recipients.

HIV and AIDS Prevention: HIV-related preventive behavior in U.S. improves in many population groups
AIDSWEEKLY Plus; Monday, December 1, 2003
Staff Medical Writers
Data from national surveys conducted in the United States from 1987-2002 indicate that adolescents and adults in certain populations remain at high risk for transmitting or acquiring HIV infection.

HIV/AIDS Therapy: Long-term HAART does not lead to full T-cell recovery
AIDSWEEKLY Plus; Monday, December 1, 2003
Staff Medical Writers
Long-term HAART regimens do not induce full T-cell recovery in HIV patients.

AIDS Epidemiology: Bisexuality, abuse, drugs behind AIDS spread among South's rural blacks
AIDSWEEKLY Plus; Monday, December 1, 2003
Staff Medical Writers
Health officials have struggled for years to understand why blacks across the rural South are contracting AIDS at a faster rate than whites.

November

AIDS Therapy: HDL increases observed in study of new protease inhibitor Lexiva
AIDSWEEKLY Plus; Monday, November 24, 2003
Staff Medical Writers
Increases in high-density lipoprotein cholesterol (HDL-C) - so-called "good" cholesterol - were observed at 48 weeks among patients participating in a phase III clinical trial of the new protease inhibitor (PI) Lexiva (fosamprenavir calcium) (formerly GW43908, or 908) boosted with ritonavir (Lexiva/r), according to research presented at the meeting of the European AIDS Council (EAC).

AIDS Prevention: Researchers discover the mouth's defenses against AIDS
AIDSWEEKLY Plus; Monday, November 24, 2003
Staff Medical Writers
Researchers at Case Western Reserve University and the Cleveland Clinic have discovered a way that the mouth may prevent the contraction of HIV.

AIDS Prevention: New CDC-funded HIV program at UNC integrates treatment with prevention
AIDSWEEKLY Plus; Monday, November 24, 2003
Staff Medical Writers
In its latest attempt to reduce the number of new HIV infections nationwide, the U.S. government is locating prevention programs squarely in the treatment setting.

AIDS Epidemiology: U.S. warns spread of AIDS in India, China could kill hopes for containment
AIDSWEEKLY Plus; Monday, November 17, 2003
Staff Medical Writers
The rapid spread of AIDS in China and India could destroy any chance of containing the disease, U.S. Health and Human Services Secretary Tommy Thompson warned.

HIV/AIDS Therapy: Antiretroviral therapy should begin when T cells drop below 350 cells/microL
AIDSWEEKLY Plus; Monday, November 17, 2003
Staff Medical Writers
Researchers propose that highly active antiretroviral therapy should begin when CD4+ lymphocyte counts fall below 350 cells/microliter.

Genomics and Genetics: Genetic recombination between R5 and X4 HIV strains occurs in vivo
AIDSWEEKLY Plus; Monday, November 17, 2003
Staff Medical Writers
In vivo genetic recombination between X4 and R5 strains of HIV has been reported.

HIV Prevention: Clear proof offered that HIV virus cannot pass through condoms
AIDSWEEKLY Plus; Monday, November 10, 2003
Staff Medical Writers
Questions have arisen recently over whether the HIV virus can or cannot pass through pores in latex condoms. European Union (E.U.) research projects provide extensive proof that this is not the case: if properly used, condoms are safe.

Drug Development: Adenosine analogs have potent antiretroviral activity in vitro
AIDSWEEKLY Plus; Monday, November 10, 2003
Staff Medical Writers
A series of adenosine analogs have demonstrated promising antiretroviral activity in vitro.

DNA Research: DNA condensation by HIV NCp7 has protective role
AIDSWEEKLY Plus; Monday, November 10, 2003
Staff Medical Writers
DNA condensation by the HIV protein NCp7 helps maintain viral DNA stability in the cellular environment.

HIV/AIDS Therapy: Female HIV patients have higher risk of antiretroviral-induced ATAs
AIDSWEEKLY Plus; Monday, November 3, 2003
Staff Medical Writers
Female HIV patients have higher risk of antiretroviral-induced adipose tissue alterations (ATAs) compared to their male counterparts.

HIV/AIDS Diagnosis: FDG-PET imaging shows HIV progression
AIDSWEEKLY Plus; Monday, November 3, 2003
Staff Medical Writers
FDG-based positron emission tomography (PET) can be used to track HIV disease progression.

Women's Health: MAGI assay improves HIV detection in female genital secretions
AIDSWEEKLY Plus; Monday, November 3, 2003
Staff Medical Writers
The MAGI assay improves detection of HIV in female genital secretions.

October

HIV/AIDS Lipodystrophy: Predictors of HIV dyslipidemia identified
AIDSWEEKLY Plus; Monday, October 27, 2003
Staff Medical Writers
"Protease inhibitor-based highly active antiretroviral therapy (PI-HAART) has been implicated in dyslipidemia, peripheral insulin resistance, and abnormal adipose tissue deposition in human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome, or AIDS," scientists in St. Louis explained. "In vitro evidence indicates that some PIs reduce adipocyte lipoprotein (LPL) and hepatic lipase (HL) expression and activities."

HIV/AIDS Therapy: Rapamycin downregulates CCR5 and heightens anti-HIV chemokine levels
AIDSWEEKLY Plus; Monday, October 27, 2003
Staff Medical Writers
Rapamycin treatment reduces expression of the HIV coreceptor CCR5 and heightens levels of anti-HIV chemokines.

HIV/AIDS Theapy: CCR5-disrupting molecules can prevent HIV infection
AIDSWEEKLY Plus; Monday, October 27, 2003
Staff Medical Writers
Novel CCR5-disrupting molecules prevent HIV infection of cultured cells.

Drug Development: Chinese herbal medicine may be basis for anti-HIV agents
AIDSWEEKLY Plus; Monday, October 20, 2003
Staff Medical Writers
A Chinese medicinal herb may contain a potent antiretroviral agent.

HIV/AIDS Therapy: Switch maintenance may prevent lipodystrophy in NNRTI-treated HIV patients
AIDSWEEKLY Plus; Monday, October 13, 2003
Staff Medical Writers
Switch maintenance may prevent lipodystrophy in NNRTI-treated HIV patients.

HIV/AIDS Pathogenesis: CCR5 and CXCR4 have distinct mechanisms of agonist-induced endocytosis
AIDSWEEKLY Plus; Monday, October 13, 2003
Staff Medical Writers
CCR5 and CXCR4 have distinct mechanisms of agonist-induced endocytosis.

HIV/AIDS Cancer: Aberrant somatic hypermutation linked to AIDS-associated NHL development
AIDSWEEKLY Plus; Monday, October 13, 2003
Staff Medical Writers
Aberrant somatic hypermutation may play a key role in the development of AIDS-associated NHL.

AIDS Prevention: Study will test antiviral drug tenofovir to prevent HIV infection
AIDSWEEKLY Plus; Monday, October 6, 2003
Staff Medical Writers
University of California San Francisco (UCSF) researchers have been funded by the U.S. National Institutes of Health to study the antiretroviral drug tenofovir as a potential pre-exposure prophylaxis in Cambodia among high-risk, HIV-uninfected women. The research will look at safety and effectiveness of the drug in preventing the acquisition of HIV.

HIV/AIDS Lipodystrophy: Antioxidant treatment may do more harm than good
AIDSWEEKLY Plus; Monday, October 6, 2003
Staff Medical Writers
Antioxidant treatment may do more harm than good for patients with HIV-associated lipodystrophy.

HIV/AIDS Lipodystrophy: Leptin replacement can ameliorate protease inhibitor-induced lipid abnormalities
AIDSWEEKLY Plus; Monday, October 6, 2003
Staff Medical Writers
Leptin replacement therapy can ameliorate the lipid dysfunction triggered by some anti-HIV drugs.

September

HIV/AIDS Testing: Modified AMPLICOR HIV-1 MONITOR 1.5 detects HIV RNA at previously undetectable levels
AIDSWEEKLY Plus; Monday, September 22, 2003
AIDS Weekly Editors and Staff
A modified version of the AMPLICOR HIV-1 MONITOR version 1.5 can detect HIV RNA at previously undetectable levels.

HIV/AIDS Pathogenesis: MHC-I alleles linked to slow HIV progression bind dominant CTL epitopes during acute infection
AIDSWEEKLY Plus; Monday, September 22, 2003
Staff Medical Writers
MHC-I alleles linked to slow HIV progression bind dominant CTL epitopes during acute infection.

HIV Progression: Six months after start of treatment could be optimum time for making prognosis
AIDSWEEKLY Plus; Monday, September 15, 2003
Staff Medical Writers
An international study suggests that prognosis for patients with HIV/AIDS might be more reliably determined 6 months after initiation of highly active antiretroviral therapy (HAART), rather than before the start of treatment.

HIV/AIDS Public Health: Novel HIV case definition improves diagnosis of children in developing areas
AIDSWEEKLY Plus; Monday, September 15, 2003
Staff Medical Writers
A novel set of criteria for determining HIV infection could improve the diagnosis of children in developing regions.

HIV/AIDS Immunology: CD4+ natural killer cells may play key role in HIV pathogenesis
AIDSWEEKLY Plus; Monday, September 15, 2003
Staff Medical Writers
NK cells expressing CD4 may play a key role in the pathogenesis of HIV infection.

WHO promotes 100% condom use among sex workers in Asia
AIDSWEEKLY Plus; Monday, September 8, 2003
Staff Medical Writers
In an effort to slow the spread of AIDS in Asia, the World Health Organization (WHO) recently met in Laos to promote its policy of 100% condom use among sex workers.

HIV/AIDS Therapy: Murine CEM15 strongly inhibits wild-type HIV replication
AIDSWEEKLY Plus; Monday, September 8, 2003
Staff Medical Writers
The murine version of a human protein strongly inhibits HIV replication.

Drug Resistance: Most resistance to anti-HIV drugs created by good pill-taking patients
AIDSWEEKLY Plus; Monday, September 8, 2003
Staff Medical Writer
Resistance mutations to anti-HIV medications are more likely to occur in patients who take most of their medications rather than in those who don't, according to AIDS specialists at the University of California, San Francisco (UCSF).

Antiviral Therapy: Novel DSTP derivative inhibits growth of HIV and herpesviruses
AIDSWEEKLY Plus; Monday, September 1, 2003
Michael Greer, Senior Medical Writer
A novel DSTP derivative strongly inhibits the cellular activity of HIV and a variety of herpesviruses.

HIV/AIDS Therapy: Proflavine disrupts HIV Rev protein activity
AIDSWEEKLY Plus; Monday, September 1, 2003
Michael Greer, Staff Medical Writers
The novel antiretroviral agent proflavine efficiently disrupts the activity of the HIV Rev protein.

TNF-alpha-inducible mutation in interferon gamma gene linked to rapid HIV progression
AIDSWEEKLY Plus; Monday, September 1, 2003
Staff Medical Writers
A TNF-alpha-inducible mutation in the IFNG gene is linked to rapid disease progression in HIV patients.

August

HIV/AIDS Therapy: Electrical stimulation selectively kills HIV-infected cells
AIDSWEEKLY Plus; Monday, August 26, 2003
Staff Medical Writer
Electrical stimulation selectively kills HIV-infected cells.

AIDS Prevention: First human tests under way of HIV vaccine pioneered at UNC
AIDSWEEKLY Plus; Monday, August 25, 2003
Michael Greer, Senior Medical Writer
The world's first human test of a vaccine against the prevalent subtype of HIV in sub-Saharan African and Asia, where millions have the virus that causes AIDS, is now under way.

HIV/AIDS Obstetrics: Maternal HIV treatment can cause mitochondrial damage in children
AIDSWEEKLY Plus; Monday, August 25, 2003
Michael Greer, Senior Medical Writer
Maternal HIV treatment can cause mitochondrial damage in children, although the clinical relevance of this finding is still unclear.

AIDS Therapy: HAART therapy prolongs survival in patients with central nervous system lymphoma
AIDSWEEKLY Plus; Monday, August 18, 2003
Staff Medical Writer
AIDS patients with primary central nervous system lymphoma who receive the HAART "cocktail" therapy live much longer than those not treated with the therapy, researchers at UT Southwestern Medical Center at Dallas found.

HIV/AIDS Therapy: Mitochondrial toxicity of anti-HIV drugs elucidated
AIDSWEEKLY Plus; Monday, August 18, 2003
Staff Medical Writers
The mitochondrial toxicity of several anti-HIV agents has been elucidated.

HIV/AIDS Pathogenesis: Nef-induced macrophage protein release enables HIV infection of resting T cells
AIDSWEEKLY Plus; Monday, August 18, 2003
Staff Medical Writers
The HIV Nef protein elicits the release of macrophage factors that render resting T cells permissive to infection.

HIV/AIDS Lipodystrophy: Exercise and vitamin E can help prevent HIV-related metabolic disorders
AIDSWEEKLY Plus; Monday, August 11, 2003
Staff Medical Writers
Exercise and vitamin E intake can help prevent HIV-related lipodystrophy and similar disorders.

HIV/AIDS Therapy: Intermittent antiretroviral therapy offers no benefit over continuous treatment
AIDSWEEKLY Plus; Monday, August 11, 2003
Michael Greer, Senior Medical Writer
Intermittent antiretroviral therapy is inferior to conventional treatment for HIV patients, researchers in the United States and Europe argue.

HIV/AIDS Therapy: Antioxidants may enhance antiretroviral therapy
AIDSWEEKLY Plus; Monday, August 11, 2003
Michael Greer, Senior Medical Writer
Supplemental antioxidants may enhance the effects of antiretroviral treatment, researchers in Norway say.

HIV/AIDS Gene Therapy: Novel vectors may aid treatment of HIV-related brain damage
AIDSWEEKLY Plus; Monday, August 4, 2003
Staff Medical Writers
A pair of novel vectors may enable effective gene therapy for HIV-related neurodegeneration and other central nervous system (CNS) disorders.

HIV/AIDS Vaccine: Interferon resistance gene needed for modified vaccinia virus Ankara replication
AIDSWEEKLY Plus; Monday, August 4, 2003
Michael Greer, Senior Medical Writer
Researchers in Germany have identified an interferon (IFN) resistance gene whose expression is critical for modified vaccinia virus Ankara (MVA) replication.

AIDS and HIV: Novel adenovirus-based SIV vaccine effective in macaques
AIDSWEEKLY Plus; Monday, August 4, 2003
Michael Greer, Senior Medical Writer
A novel adenovirus-based vaccine against the simian version of HIV (SIV) has delivered promising results in a macaque model of infection, researchers in the United States report.

July

HIV/AIDS Therapy: Novel inhibitory antibodies isolated
AIDSWEEKLY Plus; Monday, July 28, 2003
Staff Medical Writers
A series of novel anti-HIV antibodies have been identified. "Inhibitory antibodies to the reverse transcriptase (RT) of human immunodeficiency virus type-1 (HIV-1) can be used to block the life cycle of the virus," researchers in Israel explained.

HIV/AIDS Vaccine: Subtype B and E gp120-based vaccines safe and effective for Thai recipients
AIDSWEEKLY Plus; Monday, July 28, 2003
Staff Medical Writers
A pair of novel HIV vaccines have shown promise in a study involving healthy Thai adults.

HIV/AIDS Therapy: Novel agents active against NNRTI-resistant viruses
AIDSWEEKLY Plus; Monday, July 28, 2003
Staff Medical Writers
A series of novel antiretroviral agents are active against HIV strains resistant to non-nucleoside reverse transcriptase inhibitors (NNRTIs).

AIDS Therapy: Data shows reduced opportunistic infections in AIDS patients treated with HE2000
AIDSWEEKLY Plus; Monday, July 21, 2003
Michael Greer, Senior Medical Writer
Hollis-Eden Pharmaceuticals, Inc., (HEPH) announced additional data from a phase II clinical trial conducted in South Africa in late-stage HIV patients who have progressed to AIDS (average starting CD4 count for patients in the trial was less than 50).

HIV/AIDS Coinfection: Hepatitis C infection common in Thailand vaccine volunteers
AIDSWEEKLY Plus; Monday, July 21, 2003
Staff Medical Writers
Hepatitis C coinfection is common in male HIV patients who volunteer for vaccine research in Thailand, researchers there report.

HIV/AIDS Vaccine: DNA priming improves HSV-1 amplicon-induced T-cell responses
AIDSWEEKLY Plus; Monday, July 21, 2003
Michael Greer, Senior Medical Writer
DNA priming enhances the performance of an HIV vaccine based on herpes simplex virus particles, researchers in the United States say.

HIV/AIDS Immunology: Interleukin-15 can enhance virus-specific immunity in children
AIDSWEEKLY Plus; Monday, July 14, 2003
Staff Medical Writers
Interleukin-15 can enhance anti-HIV cellular immunity in children.

HIV/AIDS Vaccine: Autologous virus-based reagents needed for accurate measure of T-cell responses
AIDSWEEKLY Plus; Monday, July 14, 2003
Michael Greer, Senior Medical Writer
Reagents based on autologous HIV strain sequences are needed for accurate measurements of antiviral T-cell activity, researchers write in the Journal of Virology

HIV/AIDS Proteomics: Vpr mutation linked to long-term nonprogression
AIDSWEEKLY Plus; Monday, July 14, 2003
Staff Medical Writers
A mutation in the HIV gene coding for viral Vpr protein is linked to nonprogressive infection.

HIV/AIDS Obstetrics: No increase in complication risk during Caesarean section
AIDSWEEKLY Plus; Monday, July 7, 2003
Michael Greer, Senior Medical Writer
Pregnant women infected with HIV do not have an increased risk of complications during Caesarean section delivery.

RNA Research: Novel antiviral DNA enzyme identified
AIDSWEEKLY Plus; Monday, July 7, 2003
Staff Medical Writers
A novel DNA enzyme with potential anti-HIV activity has been identified.

HIV/AIDS Vaccine: Murine cytomegalovirus vector shows promise
AIDSWEEKLY Plus; Monday, July 7, 2003
Michael Greer, Senior Medical Writer
Murine cytomegalovirus (MCMV) vectors could be the basis for an effective HIV vaccine, researchers say.

June

HIV/AIDS Therapy: Monopyrrolinone-based HIV-1 protease inhibitors developed
AIDSWEEKLY Plus; Monday, June 30, 2003
Staff Medical Writers
A series of monopyrrolinone-based HIV-1 protease inhibitors have been developed.

HIV/AIDS Vaccine: Systemic priming with mucosal boosting shows promise in animals
AIDSWEEKLY Plus; Monday, June 30, 2003
Michael Greer, Senior Medical Writer
Vaccine researchers in the United States say that a mixture of systemic and mucosal immunization may offer improved protection against HIV infection.

HIV/AIDS Therapy: Lactic acidosis risk factors during NRTI treatment identified
AIDSWEEKLY Plus; Monday, June 30, 2003
Michael Greer, Senior Medical Writer
Researchers in France have identified factors linked to an increased risk of lactic acidosis during HIV treatment.

AIDS Epidemiology: Infections increasing among Seattle-area gay men
AIDSWEEKLY Plus; Monday, June 23, 2003
Staff Medical Writers
AIDS virus infections among gay men in King County, Washington, appear to be soaring, prompting warnings from health officials to take more precautions against spread of the deadly ailment.

HIV/AIDS Vaccine: Structure of broadly neutralizing antibody b12 characterized
AIDSWEEKLY Plus; Monday, June 23, 2003
Michael Greer, Senior Medical Writer
Researchers in North America have characterized the structure of a key antiretroviral antibody.

HIV/AIDS Vaccine: Demand likely to outpace distribution of successful vaccine
AIDSWEEKLY Plus; Monday, June 23, 2003
Michael Greer, Senior Medical Writer
Success in vaccine development will be only the first step in controlling the HIV pandemic, researchers in Switzerland warn.

AIDS Prevention: Study identifies triggers for risky sex among gay men
AIDSWEEKLY Plus; Monday, June 16, 2003
Staff Medical Writers
Gay men who have poor communication skills and feel unable to protect themselves against HIV infection are more likely to engage in risky sexual behaviors, according to newly released data.

HIV/AIDS Vaccine: Prime-boost regimens with flu, vaccinia virus vectors effective in animals
AIDSWEEKLY Plus; Monday, June 16, 2003
Michael Greer, Senior Medical Writer
Prime-boost HIV vaccine regimens using influenza and vaccinia virus vectors are effective in animal models, researchers say.

HIV/AIDS Vaccine: Adenovirus Gag vector with CRL1005 adjuvant effective in macaques
AIDSWEEKLY Plus; Monday, June 16, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States have identified an HIV vaccine regimen which elicits potent cellular immunity in non-human primates.

HIV/AIDS Vertical Transmission: Fetal peripheral blood cells efficiently metabolize AZT
AIDSWEEKLY Plus; Monday, June 9, 2003
Staff Medical Writers
Fetal peripheral blood cells efficiently metabolize the antiretroviral agent zidovudine, better known as AZT.

HIV/AIDS Vaccine: Hyperglycosylated gp120 mutants may induce broad humoral responses
AIDSWEEKLY Plus; Monday, June 9, 2003
Michael Greer, Senior Medical Writer
Polymorphic forms of the HIV coat protein gp120 may elicit broad humoral responses, researchers in the United States say.

HIV/AIDS Vaccine: DNA priming improves HSV-1 amplicon vector immunogenicity
AIDSWEEKLY Plus; Monday, June 9, 2003
Michael Greer, Senior Medical Writer
DNA priming improves the immunogenicity of herpes simplex virus-based vectors expressing HIV proteins, researchers in the United States report.

HIV/AIDS Therapy: Novel agent disrupts viral capsid protein function
AIDSWEEKLY Plus; Monday, June 2, 2003
Staff Medical Writers
A novel antiviral agent disrupts the activity of the HIV capsid protein.

HIV/AIDS Dementia: COX-2 plays key role in gp120 neurotoxicity
AIDSWEEKLY Plus; Monday, June 2, 2003
Staff Medical Writers
COX-2 helps mediate the neurotoxic effects of the HIV coat protein gp120.

HIV/AIDS Vaccine: Interleukin-12, cholera toxin adjuvants enhance glycoprotein vaccine
AIDSWEEKLY Plus; Monday, June 2, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States have identified a pair of adjuvants which enhance the performance of an HIV glycoprotein-based vaccine.

May

Vertical Transmission: Exposure to ART in utero or early life doesn't appear be harmful
AIDSWEEKLY Plus; Monday, May 26, 2003
Staff Medical Writers
Given concerns about the potential for adverse effects on unborn and newborn children exposed to prophylactic antiretroviral therapy (ART), researchers said they find data from a large study that indicate no serious adverse events in a large study "reassuring."

HIV Therapy: Early treatment extends life
AIDSWEEKLY Plus; Monday, May 26, 2003
Staff Medical Writers
A new study by a research scientist at Weill Cornell Medical College has shown that early antiretroviral therapy for individuals with HIV may significantly increase life expectancy, even when accounting for side effects like heightened cholesterol levels. Additionally, early therapy was found to be cost-effective, yet it is still being denied to many patients because of cost.

AIDS Prevention: Promising preclinical results presented on vaccine
AIDSWEEKLY Plus; Monday, May 26, 2003
Staff Medical Writers
Researchers at Columbus Children's Hospital and its collaborators, Targeted Genetics Corp. and the International AIDS Vaccine Initiative (IAVI), have demonstrated that utilizing a recombinant adeno-associated virus (rAAV)-based HIV vaccine resulted in robust and sustained antibody and T cell immune responses in nonhuman primates (monkeys).

Immunology: HAART can restore CMV-specific immune responses in some infected HIV-1 patients
AIDSWEEKLY Plus; Monday, May 19, 2003
Staff Medical Writers
Immunopathologists from the Pasteur Institute report they've "reconstituted cytomegalovirus (CMV)-specific T-cell responses in human immunodeficiency virus-1 [HIV-1] positive, CMV-positive patients receiving highly active antiretroviral treatment (HAART)."

Treatment Interruption: Ampligen use in HIV treatment shows promise
AIDSWEEKLY Plus; Monday, May 19, 2003
Staff Medical Writers
Data were presented at the 16th International Conference on Antiviral Research that the experimental RNA-based drug Ampligen provides a significant increase in the time interval before HIV rebound that follows cessation of current "cocktails" of anti-HIV drugs (HAART or highly active antiretroviral therapy). The report was presented by Dr. William Mitchell of Vanderbilt University.

Coinfection: HBV drug resistance in HIV-HBV infected patients calls for close monitoring
AIDSWEEKLY Plus; Monday, May 19, 2003
Staff Medical Writers
Australian researchers have found a drug-resistant strain of the hepatitis B virus (HBV) in a number of hepatitis B and HIV coinfected patients treated with the antiviral agent lamivudine.

AIDS Therapy: Caspofungin successfully treats resistant oropharyngeal candidiasis
AIDSWEEKLY Plus; Monday, May 12, 2003
Staff Medical Writers
Researchers in Switzerland report caspofungin successfully treats resistant oropharyngeal candidiasis.

HIV/AIDS Vaccine: Human immunodeficiency virus may use transcytosis to cross genital mucosa
AIDSWEEKLY Plus; Monday, May 12, 2003
Staff Medical Writers
The human immunodeficiency virus may use transcytosis across a tight monolayer of polarized human endometrial cells under pro-inflammatory conditions.

Drug Development: Azido-containing aryl beta-diketo acid HIV-1 integrase inhibitors described
AIDSWEEKLY Plus; Monday, May 12, 2003
Staff Medical Writers
Researchers at the National Istitutes of Health report the first use of azido-containing aryl beta-diketo acid HIV-1 integrase inhibitors.

Cytomegalovirus Retinitis: Risk of vision loss is high in AIDS patients
AIDSWEEKLY Plus; Monday, May 5, 2003
Staff Medical Writers
The prevalence of visual impairment for patients who have acquired immunodeficiency syndrome (AIDS) and are diagnosed with cytomegalovirus (CMV) retinitis is high, but varies with demographic characteristics, according to new research.

Pediatric HIV/AIDS: TREC analysis shows little thymic damage during adolescence
AIDSWEEKLY Plus; Monday, May 5, 2003
Staff Medical Writers
Thymic damage during adolescence is surprisingly limited in pediatric HIV patients.

HIV/AIDS Vaccine: Peptide constraints enhance anti-gp41 immunogenicity
AIDSWEEKLY Plus; Monday, May 5, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States have found a way to improve the efficacy of an anti-HIV monoclonal antibody that could serve as the basis for an effective vaccine.

April

HIV/AIDS Dementia: Novel assay useful for evaluating neuroprotective agents
AIDSWEEKLY Plus; Monday, April 28, 2003
Michael Greer, Senior Medical Writer
A novel assay can help determine the efficacy of neuroprotective agents for patients with advanced HIV disease.

HIV/AIDS Vaccine: T-cell responses in persistently seronegative women characterized
AIDSWEEKLY Plus; Monday, April 28, 2003
Michael Greer, Senior Medical Writer
Vaccine researchers in the United States and Thailand have elucidated the HIV-specific T-cell profile in "highly exposed but persistently seronegative" women (HW).

HIV/AIDS Vaccine: Standard statistical methods may underrate efficacy
AIDSWEEKLY Plus; Monday, April 28, 2003
Michael Greer, Senior Medical Writer
Standard methods of statistical analysis may not provide an accurate measure of HIV vaccineefficacy, researchers in Seattle warn.

HIV/AIDS Complications: Increased estrogen levels may underlie sexual dysfunction in men
AIDSWEEKLY Plus; Monday, April 21, 2003
Staff Medical Writers
Increased estrogen levels may underlie sexual dysfunction in male HIV patients. According to recent research from Germany, "various endocrine functions have been described" as a result of HIV infection.

HIV/AIDS Vaccine: Immunization preserves helper T cell function in animals
AIDSWEEKLY Plus; Monday, April 21, 2003
Michael Greer, Senior Medical Writer
HIV vaccine administration preserves postinfection helper T cell function in animals, researchers report.

HIV/AIDS Pathogenesis: DC-SIGN has cell-type dependent role in viral entry
AIDSWEEKLY Plus; Monday, April 21, 2003
Staff Medical Writers
The role of DC-SIGN in HIV cell entry varies by cell type. "DC-SIGN (CD209) is a C-type lectin expressed by several groups of dendritic cells (DC), including those derived from blood monocytes and DC found beneath genital epithelium," researchers in New York explained. "DC-SIGN binds the envelope glycoprotein of HIV-1 and facilitates transmission of infectious virus to permissive CD4+ T cells."

HIV/AIDS Transmission: Short-course antiretroviral regimens protect African children
AIDSWEEKLY Plus; Monday, April 14, 2003
Staff Medical Writers
Short-course nevirapine and zidovudine-lamivudine regimens reduce the vertical HIV transmission risk for African newborns.

HIV/AIDS Coinfection: Mesothelial cell human herpesvirus 8 infection linked to pleural effusions
AIDSWEEKLY Plus; Monday, April 14, 2003
Staff Medical Writers
Pleural effusions in HIV patients may be caused by mesothelial cell infection with the virus responsible for Kaposi sarcoma.

HIV/AIDS Lipodystrophy: Leptin may play role in abnormal fat distribution
AIDSWEEKLY Plus; Monday, April 14, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States say that leptin, an appetite-suppressing hormone produced by fat cells, may be involved in the development of HIV-related lipodystrophy.

Risk Behaviors: Young gay men are anxious, depressed, and ignorant of their HIV status
AIDSWEEKLY Plus; Monday, April 7, 2003
Staff Medical Writers
An alarming number of young gay men appear to be highly anxious and depressed, expressing high levels of self-hatred and low self-esteem, according to new research funded by the ESRC.

HIV Mutation: Body's own antibodies may drive new strains of HIV
AIDSWEEKLY Plus; Monday, April 7, 2003
Staff Medical Writers
Scientists in California have provided the first detailed look at how human antibodies, proteins critical for the body's defense against invading pathogens, may actually drive human immunodeficiency virus (HIV) to mutate and escape detection by the immune system.

Alcoholism: Alcohol abuse may increase susceptibility to HIV infection
AIDSWEEKLY Plus; Monday, April 7, 2003
Staff Medical Writers
A new study used simian immunodeficiency virus (SIV) infection of rhesus monkeys to examine the combined effects of chronic, binge alcohol consumption on the primary stage of SIV/HIV infection. Researchers found that alcohol consumption may increase host susceptibility to SIV/HIV infection.

March

HIV/AIDS Women's Health: Single, poor women have higher pneumonia risk in Kenya
AIDSWEEKLY Plus; Monday, March 31, 2003
Michael Greer, Senior Medical Writer
Single and poor HIV-infected women in Kenya have the highest risk of pneumonia

HIV/AIDS Vaccine: Recipients at risk for false positive test results
AIDSWEEKLY Plus; Monday, March 31, 2003
Michael Greer, Senior Medical Writer
Several HIV vaccine candidates cause a high rate of false positive test results, researchers in the United States warn.

HIV/AIDS Therapy: Antiretroviral therapy improves VH3 humoral responses
AIDSWEEKLY Plus; Monday, March 31, 2003
Michael Greer, Senior Medical Writer
Antiretroviral therapy for HIV improves variable region gene family 3 (VH3)-based humoral responses, researchers in the United States report.

Drug Abuse: U.N.: Afghan opium leads to rising drug addiction, AIDS infections
AIDSWEEKLY Plus; Monday, March 24, 2003
Staff Medical Writers
The unabated flow of illegal drugs from Afghanistan through Central Asia, continuing despite the U.S.-led ousting of the Taliban, is causing rising drug addiction and AIDS infections across the region, a top U.N. drug control official says.

HIV/AIDS Progression: Low expression of inhibitory natural killer receptors seen on cytotoxic T cells
AIDSWEEKLY Plus; Monday, March 24, 2003
Staff Medical Writers
Cytotoxic T cells from long-term non-progressing HIV patients express low levels of inhibitory natural killer receptors.

Cell Biology: Researchers identify protein that helps HIV penetrate cells
AIDSWEEKLY Plus; Monday, March 24, 2003
Staff Medical Writers
Scientists at the University of Texas Medical Branch at Galveston (UTMB) have identified a crucial link in the process that HIV uses to get inside one kind of human white blood cells.

AIDS Epidemiology: Number of HIV, AIDS cases rises steadily in Alabama and Southeast
AIDSWEEKLY Plus; Monday, March 17, 2003
Staff Medical Writers
When AIDS outreach coordinator James Waid begins work with a new client nowadays, the person is often black, female, and heterosexual, rather than white, male, and gay.

HIV/AIDS Therapy: GB virus C coinfection improves treatment response
AIDSWEEKLY Plus; Monday, March 17, 2003
Staff Medical Writers
Coinfection with GB virus C (GBV-C) improves HIV patients' response to antiretroviral treatment.

HIV/AIDS Pathogenesis: CD63 plays role in macrophage infection
AIDSWEEKLY Plus; Monday, March 17, 2003
Michael Greer, Senior Medical Writer
The transmembrane glycoprotein CD63 appears to play an important role in HIV infection of macrophages, researchers in the United States say.

HIV/AIDS Therapy: Atazanavir effective with low lipodystrophy risk
AIDSWEEKLY Plus; Monday, March 10, 2003
Staff Medical Writers
The HIV protease inhibitor (PI) atazanavir is effective and carries a low risk of PI-associated lipodystrophy.

HIV/AIDS Vaccine: Cross-reactive antibodies induced via alphavirus vector
AIDSWEEKLY Plus; Monday, March 10, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States and China have developed an HIV vaccine candidate capable of eliciting cross-reactive humoral responses to the virus.

HIV/AIDS Gene Therapy: Recombinant HIV vector effective
AIDSWEEKLY Plus; Monday, March 10, 2003
Michael Greer, Senior Medical Writer
Recombinant HIV vectors can be used to deliver highly effective antiretroviral gene therapy, according to researchers in Japan.

AIDS Therapy: 48-week study results presented comparing 908 to nelfinavir
AIDSWEEKLY Plus; March 3, 2003
Staff Medical Writers
Final 48-week results from the NEAT trial, an open-label, multicenter study evaluating the safety and efficacy of the investigational protease inhibitor (PI) GW433908 (908) in antiretroviral therapy-naive HIV-positive patients versus nelfinavir (NFV/Viracept), were presented at the 10th Conference on Retroviruses in Boston.

HIV/AIDS Vaccine: Glycoconjugate vaccines effective in animals
AIDSWEEKLY Plus; March 3, 2003
Michael Greer, Senior Medical Writer
Researchers in Massachusetts have identified a novel method for improving the performance of potential HIV vaccines.

HIV/AIDS Vaccine: Both dendritic cell cross-presentation pathways effective
AIDSWEEKLY Plus; March 3, 2003
Michael Greer, Senior Medical Writer
Researchers in France have elucidated the mechanisms by which effective HIV vaccine candidates deliver their payloads to antigen-presenting cells.

February

HIV/AIDS Dementia: Ethanol strongly potentiates virus-induced apoptosis in brain microvascular cells
AIDSWEEKLY Plus; Monday, February 24, 2003
Staff Medical Writers
"Ethanol may have significant effects on human immunodeficiency virus type I (HIV-1) pathogenesis in vivo," according to a recent study from the United States.

HIV/AIDS Vaccine: Semliki Forest virus-based vaccine effective
AIDSWEEKLY Plus; Monday, February 24, 2003
Michael Greer, Senior Medical Writer
Researchers in Europe have identified a novel and effective HIV vaccine.

HIV/AIDS Vaccine: Prototype informed consent process effective
AIDSWEEKLY Plus; Monday, February 24, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States have developed a program to ensure that people taking part in HIV vaccine studies have the knowledge needed for their ethical inclusion.

HIV/AIDS Vaccine: Effects of viral protein modifications on immunogenecity characterized
AIDSWEEKLY Plus; Monday, February 17, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States have provided new insight into the effects of HIV protein modifications on vaccine performance.

HIV/AIDS Vaccine: Salmonella-based priming improves mucosal antiviral response
AIDSWEEKLY Plus; Monday, February 17, 2003
Michael Greer, Senior Medical Writer
A Salmonella-based antigen delivery system may enhance the performance of HIV vaccines, researchers say.

Hepatitis C/HIV Coinfection: Prolonged HAART may cause higher hepatitis C load in HIV coinfected
AIDSWEEKLY Plus; Monday, February 10, 2003
Sonia Nichols, Staff Medical Writer
Long-term use of highly active antiretroviral therapy (HAART) may be responsible for raising hepatitis C virus (HCV) loads in patients coinfected with human immunodeficiency virus (HIV).

HIV/AIDS Vaccine: Virion-based vaccine protects animals against disease
AIDSWEEKLY Plus; Monday, February 10, 2003
Sonia Nichols, Staff Medical Writer
A DNA vaccine containing viral particles prevents many symptoms of infection in primates exposed to the simian version of HIV (SIV), researchers in Maryland report.

HIV/AIDS Vaccine: Multicomponent protein vaccine prevents simian disease
AIDSWEEKLY Plus; Monday, February 10, 2003
Michael Greer, Senior Medical Writer
A multicomponent vaccine protects animals from the effects of the simian version of HIV (SIV), researchers say.

HIV/AIDS Pathogenesis: Cyclin-dependent kinases may be therapeutic targets
AIDSWEEKLY Plus; Monday, February 3, 2003
Staff Medical Writers
Researchers in Canada have identified a novel set of potential therapeutic targets in HIV and other viruses.

HIV/AIDS Vaccine: Novel molecular adjuvant improves anti-Env antibody responses
AIDSWEEKLY Plus; Monday, February 3, 2003
Michael Greer, Senior Medical Writer
A novel molecular adjuvant can improve the performance of DNA-based HIV vaccines, researchers in North Carolina report.

HIV/AIDS Coinfection: Antiretroviral therapy heightens long-term hepatitis C virus diversity
AIDSWEEKLY Plus; Monday, February 3, 2003
Michael Greer, Senior Medical Writer
HIV treatment can exacerbate long-term hepatitis C virus (HCV) infection, researchers in California warn.

January

AIDS Therapies: Need for social support deters HIV patients from taking their drug 'cocktails'
AIDSWEEKLY Plus; Monday, January 27, 2003
Staff Medical Writers
Social support may play a small but potentially important role in helping HIV-positive people adhere to the complicated schedules for taking their drug "cocktails" to control the virus that causes AIDS.

HIV/AIDS Pathogenesis: CD4 cell phenotypes linked to nonprogression
AIDSWEEKLY Plus; Monday, January 27, 2003
Michael Greer, Senior Medical Writer
Researchers in the United Kingdom have identified CD4 cell phenotypes linked to HIV nonprogression.

HIV/AIDS Lipodystrophy: Liver fat buildup linked to insulin resistance
AIDSWEEKLY Plus; Monday, January 27, 2003
Michael Greer, Senior Medical Writer
Researchers in Finland have shed new light on the factors responsible for HIV-associated lipodystrophy.

HIV/AIDS Therapy: High-dose interferon effective in patients coinfected with hepatitis C
AIDSWEEKLY Plus; Monday, January 20, 2003
Michael Greer, Senior Medical Writer
Interferon (IFN) treatment may be effective for both HIV and hepatitis C virus (HCV) infection, according to a researcher in Japan.

HIV/AIDS Pathogenesis: Viral Tat protein enhances monocyte adhesion through nuclear factor-kappaB activation
AIDSWEEKLY Plus; Monday, January 20, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States have shed new light on the effects of the HIV Tat protein on endothelial cells.

HIV/AIDS Dementia: CPI-1189 safe but ineffective
AIDSWEEKLY Plus; Monday, January 20, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States report disappointing results for an agent with potential for treating HIV-related central nervous system (CNS) morbidity.

HIV/AIDS Pathogenesis: Morphine enhances macrophage infection through chemokine, coreceptor modulation
AIDSWEEKLY Plus; Monday, January 13, 2003
Michael Greer, Senior Medical Writer
Researchers in the United States have elucidated the mechanisms by which opiates increase macrophage susceptibility to HIV.

HIV/AIDS Therapy: Actinomycin D stimulates HIV replication
AIDSWEEKLY Plus; Monday, January 13, 2003
Michael Greer, Senior Medical Writer
The anticancer drug actinomycin D (ActD) should not be used to treat HIV patients, researchers in the United States warn.

HIV/AIDS Dementia: Functional MRI can find brain abnormalities in asymptomatic patients
AIDSWEEKLY Plus; Monday, January 13, 2003
Michael Greer, Senior Medical Writer
Functional magnetic resonance imaging (fMRI) can provide early warning of neurologic morbidity in HIV patients, researchers in the United States report.

HIV/AIDS Therapy: Leptin levels linked to antiretroviral-induced immune recovery
AIDSWEEKLY Plus; Monday, January 6, 2003
Prepared by AIDS Weekly editors from staff and other reports
Leptin levels may be linked to immune recovery after antiretroviral therapy in pediatric HIV patients, researchers in Italy report.

Epidemiology: Hepatitis C virus presents risk for liver cancer in adults with AIDS
AIDSWEEKLY Plus; Monday, January 6, 2003
Sonia Nichols, Senior Medical Writer
Government researchers have established a connection between hepatitis C virus (HCV) infection and liver cancer but not HCV infection and non-Hodgkin lymphoma (NHL) in people with AIDS.

HIV/AIDS Pathogenesis: Endosomal, lysosomal degradation suppression augments viral infectivity
AIDSWEEKLY Plus; Monday, January 6, 2003
Michael Greer, Senior Medical Writer
Agents that inhibit cellular lysosomal or endosomal activity could increase susceptibility to HIV infection, researchers in the United States warn.


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