scholarly journals The psychiatry of HIV infection

1997 ◽  
Vol 3 (1) ◽  
pp. 17-24
Author(s):  
José Catalan

In 1981 the condition that was later to be known as the acquired immune deficiency syndrome (AIDS) was described, and in 1983 its causative agent, the human immunodeficiency virus 1 (HIV-1), was isolated. The past 15 years have led to a growing awareness of the global nature of the epidemic and, in parallel with it, to the recognition of its medical, socioeconomic and psychological consequences. In the UK, almost 12 000 AIDS cases have been reported since 1982, and more than 25 000 cases of HIV-1 infection have been identified since 1984. Most cases of AIDS and HIV-1 have been in the Thames Regions, and it is expected that this geographical pattern will continue until the end of the decade.

2001 ◽  
Vol 356 (1410) ◽  
pp. 877-887 ◽  
Author(s):  
Tom Burr ◽  
J. M. Hyman ◽  
Gerald Myers

The subtypes of human immunodeficiency virus type 1 (HIV–1) group M exhibit a remarkable similarity in their between–subtype distances, which we refer to as high synchrony. The shape of the phylogenetic tree of these subtypes is referred to as a sunburst to distinguish it from a simple star phylogeny. Neither a sunburst pattern nor a comparable degree of symmetry is seen in a natural process such as in feline immunodeficiency virus evolution. We therefore have undertaken forward–process simulation studies employing coalescent theory to investigate whether such highly synchronized subtypes could be readily produced by natural Darwinian evolution. The forward model includes both classical (macro) and molecular (micro) epidemiological components. HIV–1 group M subtype synchrony is quantified using the standard deviation of the between–subtype distances and the average of the within–subtype distances. Highly synchronized subtypes and a sunburst phylogeny are not observed in our simulated data, leading to the conclusion that a quasi–Lamarckian, punctuated event occurred. The natural transfer theory for the origin of human acquired immune deficiency syndrome (AIDS) cannot easily be reconciled with these findings and it is as if a recent non–Darwinian process took place coincident with the rise of AIDS in Africa.


2001 ◽  
Vol 356 (1410) ◽  
pp. 923-925 ◽  
Author(s):  
Daniel Vangroenweghe

The early cases of acquired immune deficiency syndrome and human immunodeficiency virus type 1 (HIV–1) infection in the 1960s and 1970s in Congo–Kinshasa (Zaire), Rwanda and Burundi are reviewed. These countries appear to be the source of the HIV–1 group M epidemic, which then spread outwards to neighbouring Tanzania and Uganda in the east, and Congo–Brazzaville in the west. Further spread to Haiti and onwards to the USA can be explained by the hundreds of single men from Haiti who participated in the UNESCO educational programme in the Congo between 1960 and 1975.


2020 ◽  
Vol 9 (2) ◽  
pp. 190
Author(s):  
Gede Setula Narayana ◽  
I Kadek Wahyu Putra Dyatmika ◽  
Widia Danis Swari ◽  
I Gede Putu Supadmanaba

Acquired Immune Deficiency Syndrome (AIDS) is the cause of death of million people in the world in 2016. The prevalence of Human Immunodeficiency Virus-1 (HIV-1) infection in Indonesia is still high and number of death caused by HIV-1-related diseases shows an apprehensive number. Treatment of HIV/AIDS nowadays is not effective to eradicate HIV-1 and also cause adverse effects. Previous research found RN-18 as a specific antagonistic molecule for viral infectivity factor (Vif) that can trigger Vif degradation and maintain intracellular A3G level. The aim of this review is to examine the potential of NARN-18 based PLGA-CS-PEG nanoparticles through oral administration in the management of HIV-1 infection. Method of this article is using literature review method. Literature searching is done by using “A3G”, “HIV-1”, “PLGA-CS-PEG”, “RN-18”, and “Vif” as keywords in search engine. 13a molecule, that is the analogue of RN-18, is used in the modality because it has better effectiveness and solubility compared with RN-18. By using PLGA, PEG, and chitosan (CS) as nanoparticles that carries RN-18 analogue makes the modality can be taken orally and targets T cell as soon as it enters the blood stream. It also can increase the efficiency of drug release and drug loading of the modality. NARN-18 constructed by using PLGA-PEG-CS nanoparticle makes the modality can be administered orally, increase its half-life in the body, and also increase the inhibition effect of RN-18 analogue. Therefore, this combination is one of the potential therapy in HIV-1 infection treatment.


2001 ◽  
Vol 356 (1410) ◽  
pp. 803-814 ◽  
Author(s):  
Edward Hooper

The simian immunodeficiency virus (SIV) of the common chimpanzee is widely acknowledged as the direct ancestor of HIV–1. There is increasing historical evidence that during the late 1950s, kidneys were routinely excised from central African chimpanzees by scientists who were collaborating with the polio vaccine research of Dr Hilary Koprowski, and sent – inter alia – to vaccine–making laboratories in the USA and Africa, and to unspecified destinations in Belgium. While there is no direct evidence that cells from these kidneys were used as a substrate for growing Dr Koprowski's oral polio vaccines, there is a startling coincidence between places in Africa where his CHAT vaccine was fed, and the first appearances in the world of HIV–1 group M and group–M–related AIDS. Because of the enormous implications of the hypothesis that AIDS may be an unintended iatrogenic (physician–caused) disease, it is almost inevitable that this theory will engender heated opposition from many of those in the scientific establishment, and those with vested interests.


2001 ◽  
Vol 356 (1410) ◽  
pp. 855-866 ◽  
Author(s):  
Karina Yusim ◽  
Martine Peeters ◽  
Oliver G. Pybus ◽  
Tanmoy Bhattacharya ◽  
Eric Delaporte ◽  
...  

In earlier work, human immunodeficiency virus type 1 (HIV–1) sequences were analysed to estimate the timing of the ancestral sequence of the main group of HIV–1, the virus that is responsible for the acquired immune deficiency syndrome pandemic, yielding a best estimate of 1931 (95% confidence interval of 1915–1941). That work will be briefly reviewed, outlining how phylogenetic tools were extended to incorporate improved evolutionary models, how the molecular clock model was adapted to incorporate variable periods of latency, and how the approach was validated by correctly estimating the timing of two historically documented dates. The advantages, limitations, and assumptions of the approach will be summarized, with particular consideration of the implications of branch length uncertainty and recombination. We have recently undertaken new phylogenetic analysis of an extremely diverse set of human immunodeficiency virus envelope sequences from the Democratic Republic of the Congo (the DRC, formerly Zaire). This analysis both corroborates and extends the conclusions of our original study. Coalescent methods were used to infer the demographic history of the HIV–1 epidemic in the DRC, and the results suggest an increase in the exponential growth rate of the infected population through time.


1987 ◽  
Vol 3 (2) ◽  
pp. 306-318

The appearance of acquired immune deficiency syndrome (AIDS) has brought suffering and death to those who are afflicted and, at the same time, has posed daunting challenges to those who care for the sufferers, to biomedicai scientists, and to those responsible for public health and public policy. Among these challenges is the protection of the nation's blood supply from contamination by human immunodeficiency virus (HIV),1 the causative agent of AIDS. This challenge was met rapidly by the development of laboratory tests to detect the presence of antibody against the virus. The application of these tests makes it possible to determine whether the person has been infected by the virus at some time and thus to exclude persons from donating blood or to discard blood already donated. In the past 15 months, the widespread application of these tests along with self-deferral and removal of HIV-positive subjects from the pool of donors has sharply reduced the likelihood of the virus being spread by way of blood products.


2001 ◽  
Vol 356 (1410) ◽  
pp. 795-798 ◽  
Author(s):  
Kevin M. De Cock

Although acquired immune deficiency syndrome (AIDS) was first described in the USA in 1981, there is evidence that individual cases occurred considerably earlier in Central Africa, and serological and virological data show human immunodeficiency virus (HIV) was present in the Democratic Republic of Congo (DRC) as far back as 1959. It is likely that HIV–1 infection in humans was established from cross–species transmission of simian immunodeficiency virus of chimpanzees, but the circumstances surrounding this zoonotic transfer are uncertain. This presentation will review how causality is established in epidemiology, and review the evidence (a putative ecological association) surrounding the hypothesis that early HIV–1 infections were associated with trials of oral polio vaccine (OPV) in the DRC. From an epidemiological standpoint, the OPV hypothesis is not supported by data and the ecological association proposed between OPV use and early HIV/AIDS cases is unconvincing. It is likely that Africa will continue to dominate global HIV and AIDS epidemiology in the near to medium–term future, and that the epidemic will evolve over many decades unless a preventive vaccine becomes widely available.


1997 ◽  
Vol 9 (4) ◽  
pp. 223-241
Author(s):  
Marie-Louise Newell ◽  
Claire Thorne

The human immunodeficiency virus (HIV) is a retrovirus which causes immune suppression mainly through depletion and destruction of CD4 lymphocytes. This results in increased susceptibility to opportunistic infections which in turn leads to acquired immune deficiency syndrome (AIDS). Since HIV (HIV-1) was first identified in 1983, the infection has spread across the world and has developed into arguably the most important and far-reaching pandemic of this century. HIV infection can be acquired through sexual contact, blood or blood products (including contaminated injecting equipment) and vertically from mother to child. Heterosexual acquisition is the dominant route among women, although in some settings injecting drug use (IDU) can also be an important source. In 1985, HIV-2 was isolated in a study of Senegalese women and subsequently found to be prevalent in West Africa and in areas of emigration from West Africa. HIV-2 is less transmissable and pathogenic than HIV-1 and this review is restricted to HIV-1 infection.


2021 ◽  
Vol 21 (1) ◽  
pp. 6
Author(s):  
Sefren Geiner Tumilaar ◽  
Jainer Pasca Siampa ◽  
Trina Ekawati Tallei

ABSTRAKHuman Immunodeficiency Virus (HIV) merupakan virus yang menyerang sistem kekebalan tubuh, dan pada akhirnya dapat menyebabkan Acquired Immune Deficiency Syndrome (AIDS). Daun Pangi (Pangium edule) yang sering digunakan sebagai sayuran oleh masyarakat di Sulawesi Utara, telah diteliti memiliki efek penghambatan pada enzim protease HIV-1. Penelitian ini bertujuan untuk mengevaluasi potensi senyawa bioaktif yang terkandung dalam daun Pangi dalam menghambat protease HIV-1 secara in silico. Senyawa ini diekstraksi menggunakan etanol dan ditentukan menggunakan Gas Chromatography-Mass Spectrometer (GC-MS). Penambatan molekul dilakukan menggunakan program Autodock Vina dengan menambatkan senyawa yang telah ditentukan pada situs aktif reseptor protease HIV-1 (PDB ID: 3NU3). Hasil GC-MS dari ekstrak etanol daun Pangi menunjukkan 12 komponen senyawa. Senyawa-senyawa ini  digunakan sebagai ligan untuk ditambatkan pada protease HIV-1. Hasil penambatan senyawa-senyawa tersebut dibandingkan dengan hasil penambatan amprenavir yang digunakan sebagai ligan kontrol. Studi penambatan molekuler menunjukkan bahwa Phytol merupakan ligan dengan nilai afinitas pengikatan terendah (-8,8 kkal / mol).Kata kunci: Pangi; penambatan molekuler; protease HIV-1Molecular Docking of Bioactive Compounds from Pangi (Pangium edule) Leaves Ethanol Extract Against HIV-1 Protease ABSTRACTHuman Immunodeficiency Virus (HIV) is a virus that attacks the immune system and can eventually cause Acquired Immune Deficiency Syndrome (AIDS). The leaf of Pangi (Pangium edule), which is often used as a vegetable by people in North Sulawesi, has been investigated to have an inhibitory effect on the HIV-1 protease enzyme. This study aimed to evaluate the potential of bioactive compounds contained in Pangi leaves in inhibiting HIV-1 protease by using in silico analysis. These compounds were extracted using ethanol and determined using a Gas Chromatography-Mass Spectrometer (GC-MS). The evaluation was carried out using the Autodock Vina program by docking the determined compounds on the active site of the HIV-1 protease receptor (PDB ID: 3NU3). There were 12 compounds detected in the ethanol extract of Pangi leaves, which were then used as ligands, and the results were compared with amprenavir as a control ligand. Molecular docking study showed that Phytol was the ligand with the lowest binding affinity value ( -8.8 kcal/mol).Keywords: Pangi;  molecular docking; HIV-1 protease


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