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[THC content of cannabis and cannabis resin in samples seized by the Swedish police].

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The THC-content in 1100 samples of cannabis resin and 600 of marihuana has been determined. The content of THC varied much, in the resin groups mostly depending on the origin and age of the resin and in the marihuana groups depending on the origin and race of the seeds.

Effects of cannabis resin on learning by repetition in the rat.

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Studies were made of the effects of cannabis resin in differing doses on a type of learning by repetition, using the water-filled maze technique, and on the conditioned avoidance reflex in the rat. When administered at a dose corresponding to 0.5 mg of delta9-THC per kg, the resin led to improved

Determination of the distribution of cannabinoids in cannabis resin using high performance liquid chromatography.

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A high performance liquid chromatographic system is described for the separation of cannabinoids, which were detected by ultra-violet absorption at 220 nm. The identity of the cannabinoids was established by comparison of retention times with reference compounds, by simple chemical conversions to

Determination of the distribution of cannabinoids in cannabis resin from the Lebanon using HPLC. Part III.

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Samples taken from 61 slabs of cannabis resin originating in The Lebanon were examined by high performance liquid chromatography. The slabs were derived from seizures of cannabis resin made over a three-year period. From a study of 14 of these samples, taken from bags which bore a number of

Attempted ignition of petrol vapour by lit cigarettes and lit cannabis resin joints.

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A recent murder enquiry prompted experimentation to confirm and visually demonstrate that lit cigarettes are not a viable source of ignition of petrol vapour. In addition, tests comprising the attempted ignition of petrol vapour using hot and smouldering cannabis resin were also undertaken. A series

Effects of administration of cannabis resin during pregnancy on emotionality and learning in rats' offspring.

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Injection of cannabis resin as a saline-Tween 80 solution to pregnant rats resulted in pups having lower body weight, higher emotionality, poorer learning capacity, and paradoxically higher brain weight and DNA content. The cannabis appeared directly to have caused the inferior growth rate of the

Development of a validated method for the qualitative and quantitative analysis of cannabinoids in plant biomass and medicinal cannabis resin extracts obtained by super-critical fluid extraction.

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The social push for the therapeutic use of cannabis extracts has increased significantly over recent years. Cannabis is being used for treatment for conditions such as epilepsy, cancer and pain management. There are a range of medicinal cannabis products available, but the use of cannabis resin

Cannabis resin in the region of Madrid: Adulteration and contamination.

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The aim of this study is to analyze the adulteration and contamination of cannabis resin obtained on the streets of Madrid, in order to establish whether it is suitable for human consumption. A total of 90 samples obtained through street vending in the Region of Madrid (CAM) were analyzed. Our

Forensic aspects of the metabolism and excretion of cannabinoids following oral ingestion of cannabis resin.

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Following oral ingestion of cannabis resin, delta 9-THC-11-oic acid and its O-ester glucuronide were detected using RIA and combined hplc/RIA and shown to be major plasma metabolites of delta 9-THC. delta 9-THC-11-oic acid was not excreted in the urine in significant concentrations, the glucuronide

Extraction of high quality DNA from seized Moroccan cannabis resin (Hashish).

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The extraction and purification of nucleic acids is the first step in most molecular biology analysis techniques. The objective of this work is to obtain highly purified nucleic acids derived from Cannabis sativa resin seizure in order to conduct a DNA typing method for the individualization of

Effects of the resin and smoke condensate of Cannabis sativa on the oestrous cycle of the rat.

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This study is concerned with variations in the oestrous cycle of the Sprague-Dawley rat following the intraperitoneal administration of maize oil solutions of Cannabis sativa resin and smoke condensate in doses of 10 and 20 mg/kg. Oestrus was shortened with doses of both the resin and the smoke

Development of rapid and simple method for DNA extraction from cannabis resin based on the evaluation of relative PCR amplification ability.

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In recent years, analysis of cannabis DNA has been increasingly used in forensic drug tests. However, in the case of cannabis resin, a processed marijuana product, complicated procedures are required for the extraction of clean DNA, as the presence of various impurities inhibits PCR amplification.

Multidimensional analysis of cannabis volatile constituents: identification of 5,5-dimethyl-1-vinylbicyclo[2.1.1]hexane as a volatile marker of hashish, the resin of Cannabis sativa L.

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The volatile constituents of drug samples derived from Cannabis sativa L. were investigated by means of headspace solid phase microextraction (HS-SPME) and gas chromatography techniques (GC-MS, GC×GC-MS). Samples of cannabis herb and hashish showed clear differences in their volatile chemical

Effects of long term storage on secondary metabolite profiles of cannabis resin.

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The structural identification and the monitoring of the relative concentrations of a wide range of major (3) and minor secondary (16) metabolites used as marker substances for profiling of cannabis resin using GC-FID at the Swedish National Forensic Centre (NFC) has facilitated the mapping of their

Mitigation of post-traumatic stress symptoms by Cannabis resin: a review of the clinical and neurobiological evidence.

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It is known from clinical studies that some patients attempt to cope with the symptoms of post-traumatic stress disorder (PTSD) by using recreational drugs. This review presents a case report of a 19-year-old male patient with a spectrum of severe PTSD symptoms, such as intense flashbacks, panic

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